With minimal training, no air cover, no armor, no resupply, no avenue of escape, against an enemy who is entrenched and fighting on his home turf - what could possibly go wrong? I've never served in the military and even a piss ant arm chair general like me can see the issues with that plan. You have to wonder who actually planned that idiocy.
It was Eisenhower that originally went along with the CIA to get Cuban exiles to go up against Castro. It was Eisenhower that said it was U.S. government policy aid anti-Castro guerrilla forces.
What's up with that? We were not being attacked at the time, in addition to the fact that Cuba at that time was zero zip threat to the U.S.